Operating apparatus for a pivoted window



Sept. 19, 1961 Filed Aug. 12, 1959 R. F. DARNEY 3,000,626

OPERATING APPARATUS FOR A PIVOTED WINDOW 4 Sheets-Sheet l i ig I $7 ATTGRNEY Sept. 19, 1961 R. F. DARNEY 3,000,626

OPERATING APPARATUS FOR A PIVOTED WINDOW Filed Aug. 12, 1959 4 Sheets-Sheet 2 L INVENTOR.

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OPERATING APPARATUS FOR A PIVOTED WINDOW Filed Aug. 12, 1959 4 Sheets-Sheet 4 z; I INVENTOR. ,fz j zqa/w/zatz %wg 3,000,626 7 OPERATING APPARATUS FOR A PIVOTED WINDOW Raymond F. Darney, Wayne, Mich., assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Filed Aug. 12, 1959, Ser. No. 833,311 4 Claims. (Cl. 268-121) This invention relates to operating apparatus for a pivoted window, and more particularly to operating apparatus for a pivoted ventilating window in an automobile, which apparatus prevents forcing the window from outside the automobile.

One feature of the invention is that it provides improved operating apparatus for a pivoted window having inside operating means; another feature of the invention is that it provides operating apparatus which couples force exerted through the inside operating means to the window shaft but which acts as a brake to prevent rotation of the window and its shaft upon the application of a pivoting force transmitted through said window, whereby the window cannot be forced open or closed from outside the car; still another feature of the invention is that it provides a pair of brake members mounted in opposed spaced relation to each other, said brake members being adapted to prevent rotation of the window shaft when they are forced apart and to permit rotation of the window shaft when they are forced together, combined with coupling means whereby the brake members are forced apart when a pivoting force is transmitted through said window and the brake members are forced together when a pivoting force is transmitted by movement of the operating means.

Other features and advantages of the invention will be apparent from the following description and from the drawings, in which:

FIG. 1 is an elevational inside view through a portion of an automobile door having a pivoted window mounted therein and incorporating the improved operating apparatus, part of the inner door panel being broken away to show underlying structure and the window being shown in closed position;

FIG. 2 is a view similar to FIG. 1 but with the window in open position;

FIG. 3 is a vertical transverse section taken along the line 33 of FIG. 1;

FIG. 4 is a vertical transverse section taken along the line 44 of FIG. 1;

FIG. 5 is a section taken along the line 55 of FIG. 4;

FIG. 6 is a horizontal section taken along the line 66 of FIG. 5;

FIG. 7 is a horizontal section similar to FIG. 6, but showing the position of the parts upon the application of force transmitted from the inside operating means; and

FIG. 8 is a fragmentary section taken along the line 8-8 of FIG. 5.

Most automobiles are provided with a pivoting ventilating window in each front door and there may also be a similar window in each rear door or in each rear quarter panel, each of these windows being provided with inside operating means. This invention provides novel apparatus which prevents the window from being forced open or closed from the outside, i.e., by force transmitted through the window rather than through the inside operating means.

In the force chain between the window and the inside operating means, there is a pair of brake members mounted in opposed spaced relation to each other and adapted to prevent rotation of the window shaft when States FatentjG JCC the brake members are forced apart. Coupling means connect the window shaft to the brake members so that the application of a pivoting force transmitted through the window forces the brake members apart and prevents pivotal movement of the window both in opening direction and in closing direction. A second coupling means connects the inside operating means to the window shaft through the brake members, this coupling means being arranged to force the brake members together upon the application of a pivoting force transmitted by movement of the inside operating means.

Referring now more particularly to the drawings, 10 is an automobile front door having a garnish molding 11 and an inner panel 12 which is partly broken away in FIGS. 1 and 2 to show the underlying window operating structure. The door 10 carries a conventional drop window 14 and forwardly of this drop window, there is a pivoted window 16 which is carried on a shaft 18 for swinging movement between the closed position illus trated in FIG. 1 and the open position illustrated in FIG. 2. At its lower end, the shaft 18 enters a casing 20 and is keyed to a drive plate 22 which, as shown in FIGS. 5 and 8, is elongated and is formed with depending lugs 24 and 25 in the center of each of the opposite elongated sides.

Below the drive plate 22, the casing houses a pair of brake blade members 26 and 28 mounted in opposed spaced relation to each other for braking engagement with the inner wall of the casing to prevent rotation of the brake members in the casing when the brake members are forced apart. Shoes 29 and 29a limit the brake members to sliding movement toward and away from each other. As seen best in FIGS. 5, 6, 7, and 8, the lugs 24 and 25 lie between the brake members 26, 28 so that the application of a pivoting force transmitted through the window 16 or the shaft 18 forces the brake members apart, causing one of the pointed outer end portions of each brake member to dig into the casing wall. window and the shaft 18 in either a clockwise direction or a counterclockwise direction as the parts appear in FIGS. 6, 7, and 8, the drive plate 22 will start to rotate and the lugs 24 and 25 will force the brake members 26 and 28 apart.

Inside operating means are provided for opening and closing the window. As shown in FIGS. 1, 2, and 3, a frame 30 which is mounted inside the door carries a bell crank 32 which is pivotally mounted on a rivet 34 on the frame. The bell crank is formed with an upwardly extending long arm to which an operating knob 36 is connected, this knob projecting through an arcuate slot 38 formed in an escutcheon 40 which is mounted on the door inner panel 12. The arcuate slot 38 has as its center the pivotal mounting point 34 of the bell crank 32 so that the knob 36 can be freely moved from one end of the slot to the other.

The bell crank 32 has a short arm which is pivotally connected to a link 42, the other end of which is articu: lated to toggle links 44 and 45 at their point of pivotal interconnection. The toggle link 44 is pivotally mounted at one end at 46 on the frame 30 and the toggle link 45 is connected by a rivet -48 to a link 50 which is connected to a crank arm 52 projecting from a mounting portion 54 of a gear sector 56, the mounting portion 54 being rotatably mounted on the frame 30. Linear movement of the operating knob 36 between the window-closed position of FIG. 1 and the window-open posit-ion of FIG. 2 is translated by the linkage and gear sector 56 into rotary motion.

The gear sector 56 meshes with a gear 60 which is mounted on a stub shaft 62 depending from the casing In other words, if an attempt is made to turn the 20. At its upper end, the shaft 62 is staked to a disk 64 upon the upper surface of which is riveted a brake release member 66. As shown in FIGS. 6 and 7, the brake release member 66 is formed with a central opening which is irregular in shape. This opening, which is designated by the reference character 68, is generally elliptical, each opposite long side of the ellipse being formed with a notch 68a and 68!), respectively. The end wall of each of these notches is depressed in its central portion to form sloping cam surfaces as seen in FIGS. 6 and 7.' Each of the brake members 26 and 28 has a depending lug 26a and 28a, respectively, one of which enters each of the respective notches 68a and 68b. When the operating knob 36 is moved, the gear sector 56 is rotated, and this turns the gear 60 and the brake release member 66. The sloping bottom cam surfaces of the respective notches 68a and 6812 cam against the depending lugs 26a and 28b to force the brake members toward each other during rotation and move the pointed outer ends of the brake members away from the brake lining so that the window can be operated by the operating knob 36 between open and closed positions.

It will be seen that the one-way clutch or brake structure of this invention does not depend upon springs or other impositive means for moving the brake members in either braking or brake release direction. Instead, there is a positive coupling in the drive chain to spread the brake members apart and cause the brake to be applied in the event force is transmitted through the window and there is a positive coupling in the drive chain to force the brake members together in the event force is transmitted by movement of the inside operating means.

While I have shown and described one embodiment of my invention, it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from the spirit and scope of the invention as set forth in appended claims.

I claim:

1. Operating apparatus for a pivoted window, including: a shaft connected at one end to the window; means mounting the shaft for pivotal movement about its longitudinal axis to swing said window between open and closed positions; a drive plate connected to said shaft at the other end thereof, said drive plate having drive lugs depending from opposite sides thereof; a casing having a braking surface; a pair of separate, independent brake members mounted in spaced relation to each other in said casing for braking engagement with the casing to prevent rotation of the brake members in the casing when the brake members are forced apart, said drive lugs lying between said brake members so that the application of a pivoting force transmitted through said window forces said brake members apart; movable operating means for pivoting said shaft; and coupling means connecting said operating means to said shaft through said brake members and said lugs, said coupling means forcing said brake members together upon the application of a pivoting force transmitted by movement of said operating means, the coupling means making direct engagement with the brake members and the brake members making direct engagement with the drive plate, whereby the brake members form a series part of the force path between the movable operating means and the window shaft.

2. Operating apparatus for a pivoted window, including: a shaft connected at one end to the window; means mounting the shaft for pivotal movement about its longitudinal axis to sWing said window between open and closed positions; a drive plate connected to said shaft at the other end thereof, said drive plate having drive lugs depending from opposite sides thereof; a casing having a circular braking surface; a pair of separate, independent brake members mounted in opposed spaced relation to each other in said casing for braking engagement with the casing to prevent rotation of the brake members in the casing when the brake members are forced apart, said drive lugs lying between said brake members so that the application of a pivoting force transmitted through said window forces said brake members apart; movable operating means for pivoting said shaft comprising a linearly movable operating member, a pivoted gear, linkage means connecting said operating member to said gear whereby linear movement of said operating member is translated into rotary movement of said gear; and coupling means connecting said gear to said shaft through said brake members and said lugs, said coupling means forcing said brake members together upon the application of a pivoting force transmitted by movement of said operating means, the coupling means making direct engagement with the brake members and the brake members making direct engagement with the drive plate, whereby the brake members form a series part of the force path between the movable operating means and the window shaft.

3. Apparatus of the character claimed in claim 2, wherein each brake member has a depending projection, and wherein said coupling means comprises a brake release member connected to said gear and having -a cam opening receiving said projections whereby, upon rotation of said brake release member, the brake members are forced together.

4. Operating apparatus for a pivoted window, including: a shaftconnected at one end to the window; means mounting the shaft for pivotal movement about its longitudinal axis to swing said window between open and closed positions; a pair of brake members mounted in spaced relation to each other, said brake members being adapted to prevent rotation of said shaft when they are forced apart; first coupling means connecting said shaft to said brake members so that the application of a pivoting force transmitted through said window forces said brake members apart; movable operating means for pivoting said shaft comprising a linearly movable slide; a gear; linkage means connecting said slide to said gear whereby linear movement of the slide is translated into rotary movement of the gear; and second coupling means connecting said gear to said shaft through said brake members, each brake member having a depending projection, and said second coupling means comprising a brake release member connected to said gear and having a cam opening receiving said projections whereby, upon rotation of said brake release member, the brake members are forced together.

Davis et a1. Aug. 17, 1948 Dennis Jan. 6, 1953 

